-------- Original Message --------
Subject: Re: cataloging question -- noting presence of green plate on
usgs topos
Date: Wed, 05 Sep 2012 08:52:00 -0500 (CDT)
From: Linda R Zellmer <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Hello,
From what I understand, the non-vegetative maps were plotted so that
they could be used for geologic mapping and field work. Each printed
topographic map required several runs through the press: brown (for
contours), blue (for rivers), black (for printing, such as place and
feature names, roads, the neatline and information outside of the
neatline), red (section-township & range lines & roads) and then finally
green (for the vegetative cover). Some maps also required a purple run
(for the recently added features).
The maps without vegetative cover were pulled from the press run before
the green & purple were printed and sent to State Geological Surveys for
their work. USGS may have also kept some on hand for their field work.
They are identical in every way, except that they lack vegetative cover.
If you are cataloging each different sheet separately, you can do so,
but you could also do one record for both versions and add a note saying
that some sheets lack vegetative cover and note that the map lacks
vegetative cover on the circulation record.
Linda Zellmer
----- Original Message -----
From: "Angie Cope" <[log in to unmask]>
To: [log in to unmask]
Sent: Tuesday, September 4, 2012 4:44:46 PM
Subject: cataloging question -- noting presence of green plate on usgs
topos
----- Forwarded Message -----
From: "Susan Powell" <[log in to unmask]>
To: [log in to unmask]
Sent: Tuesday, September 4, 2012 11:00:36 AM
Subject: cataloging question -- noting presence of green plate on usgs topos
Hello,
I have a question that I've been curious about for a while and has
recently come up again in a project I'm working on. Some USGS topos have
a green layer (presumably indicating forest cover?) -- often this green
plate is the only feature different from an identical map (same dates,
etc.). I was wondering if anyone has noted this "green plate" in
cataloging individual sheets, and if so, which field and what language
you used to describe it.
Thanks in advance!
-Susan
Susan Powell
GIS Specialist for Metadata
Yale University Library
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